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The US trademark PBX SYSTEMS GUIDE was filed as Word mark on 10/30/1980 at the U.S. Patent and Trademark Office.
It was registered as a trademark on 01/25/1983.
The current status of the mark is "CANCELLED - SECTION 8".
| Trademark form | Word mark |
| File reference | 73283916 |
| Register number | 1224973 |
| Application date | October 30, 1980 |
| Publication date | November 2, 1982 |
| Entry date | January 25, 1983 |
Trademark owner
P.O. Box 554
20760 Gaithersburg
US
20760 Gaithersburg
US
goods and services
16
Telecommunications Reference Manual Updated Four Times Per Year
ID: 1373283916